vim-patch:partial fa3b72348d88 (#16780)

Update runtime files
fa3b72348d

omit
doc/eval.txt (needs 8.2.3864)
doc/map.txt (needs 8.2.3619)
menu.vim (needs 8.2.0413)

runtime/doc/eval.txt

@@ -5437,8 +5437,9 @@ getreg([{regname} [, 1 [, {list}]]])			*getreg()*
 		The result is a String, which is the contents of register
 		{regname}.  Example: >
 			:let cliptext = getreg('*')
-<		When {regname} was not set the result is an empty string.
-		The {regname} argument is a string.
+<		When register {regname} was not set the result is an empty
+		string.
+		The {regname} argument must be a string.
 
 		getreg('=') returns the last evaluated value of the expression
 		register.  (For use in maps.)

runtime/doc/map.txt

@@ -837,8 +837,7 @@ g@{motion}		Call the function set by the 'operatorfunc' option.
 			    "line"	{motion} was |linewise|
 			    "char"	{motion} was |charwise|
 			    "block"	{motion} was |blockwise-visual|
-			Although "block" would rarely appear, since it can
-			only result from Visual mode where "g@" is not useful.
+			The type can be forced, see |forced-motion|.
 
 Here is an example that counts the number of spaces with <F4>: >
 

runtime/doc/nvim_terminal_emulator.txt

@@ -391,6 +391,8 @@ GDB command						 *termdebug-customizing*
 To change the name of the gdb command, set the "termdebugger" variable before
 invoking `:Termdebug`: >
 	let termdebugger = "mygdb"
+If the command needs an argument use a List: >
+	let g:termdebugger = ['rr', 'replay', '--']
 
 To not use neovim floating windows for previewing variable evaluation, set the
 `g:termdebug_useFloatingHover` variable like this: >

runtime/doc/syntax.txt

@@ -4455,7 +4455,7 @@ it marks the "\(\I\i*\)" sub-expression as external; in the end pattern, it
 changes the \z1 back-reference into an external reference referring to the
 first external sub-expression in the start pattern.  External references can
 also be used in skip patterns: >
-  :syn region foo start="start \(\I\i*\)" skip="not end \z1" end="end \z1"
+  :syn region foo start="start \z(\I\i*\)" skip="not end \z1" end="end \z1"
 
 Note that normal and external sub-expressions are completely orthogonal and
 indexed separately; for instance, if the pattern "\z(..\)\(..\)" is applied